Un-geþancfullBosworth & Toller 盎格鲁-撒克逊古英语词典 - un-geþancfull根据古英语词典：un-geþancfulladj. Unthankful, ungrateful :-- Ðú man, tó hwan eart ðú mé swá ungeþancfull mínra gifena? Wulfst. 259, 1: 241, 4. un-geþancfull